The utility model belongs to the hang and bear device that the oil drilling trade was used, characterized by: installing the bearing frame on the coupling, at the interior antifriction bearing that installs through the bottom of bearing frame, installing combination thrust bearing on antifriction bearing, install the hoisting axis on antifriction bearing and combination thrust bearing's internal diameter, install the hoist and mount axle sleeve with the outside of hoisting axis on combination thrust bearing, to install the hoist and mount back of the body female with the upper portion of hoisting axis on the hoist and mount axle sleeve, installs the bearing cap on the bearing frame, installs the pillar on the bearing cap, to sum up, the utility model discloses not only having solved the various problems that the motion of spiral shell sucker -rod pumping eccentric rotor brought, having had the problem of hanging of having solved spiral shell sucker -rod pumping rotor simultaneously, it is reliable and stable to have a work safety, long service life, and economic benefits is good.